Welding gun



FIG. 1 is a perspective view of a welding gun which embodies our newdesign;

FIG. 2 is a right side elevation thereof;

FIG. 3 is a front end elevation thereof;

FIG. 4 is a rear end elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevation thereof; and

FIG. 7 is a bottom plan view thereof.

The ornamental design for a welding gun, substantially as shown anddescribed.